Chilkat Java Downloads

import com.chilkatsoft.*;
public class ChilkatExample {
static {
try {
System.loadLibrary("chilkat");
} catch (UnsatisfiedLinkError e) {
System.err.println("Native code library failed to load.\n" + e);
System.exit(1);
}
}
public static void main(String argv[])
{
// All Chilkat classes can be unlocked at once at the beginning of a program// by calling UnlockBundle. It requires a Bundle unlock code.CkGlobal chilkatGlob = newCkGlobal();
boolean success = chilkatGlob.UnlockBundle("Anything for 30-day trial.");
if (success != true) {
System.out.println(chilkatGlob.lastErrorText());
return;
}
CkFtp2 ftp = newCkFtp2();
ftp.put_Hostname("ftp.someFtpServer.com");
success = ftp.ConnectOnly();
if (success != true) {
System.out.println(ftp.lastErrorText());
return;
}
ftp.put_Username("myLogin");
ftp.put_Password("myPassword");
success = ftp.LoginAfterConnectOnly();
if (success != true) {
System.out.println(ftp.lastErrorText());
return;
}
// Change to the remote directory where the file is located.// This step is only necessary if the file is not in the root directory// for the FTP account.
success = ftp.ChangeRemoteDir("someRemoteDirectory");
if (success != true) {
System.out.println(ftp.lastErrorText());
return;
}
String localFilename = "/temp/romeo.xml";
String remoteFilename = "romeo.xml";
// --------------------// Download a file// --------------------// Call the async version of the GetFile method to return a task object.// The task object is loaded, but is in the Inert state -- meaning it is// not yet scheduled to run on Chilkat's background thread pool.CkTask task = ftp.GetFileAsync(remoteFilename,localFilename);
if (task == null ) {
System.out.println(ftp.lastErrorText());
return;
}
// Before starting the task, tell it to keep an in-memory log of what would've been// ProgressInfo callbacks.
task.put_KeepProgressLog(true);
// Schedule the task for running on the thread pool. This changes the task's state// from Inert to Live.
success = task.Run();
if (success != true) {
System.out.println(task.lastErrorText());
return;
}
// The application is now free to do anything else// while the file is being downloaded.// For this example, we'll simply sleep and periodically// check to see if the download is finished, and report the progress// along the way.int curPctDone = 0;
String name;
String value;
while (task.get_Finished() != true) {
if (task.get_PercentDone() != curPctDone) {
curPctDone = task.get_PercentDone();
System.out.println(curPctDone + " percent done");
}
// Check the progress info log.// Emit any log entries..while ((task.get_ProgressLogSize() > 0)) {
// Get the 1st entry, emit it, and then remove it..
name = task.progressInfoName(0);
value = task.progressInfoValue(0);
// Entries reporting the received byte count will have the name "RcvByteCount"// Entries reporting the current bytes-per-second will have the name "RcvBytesPerSec"
System.out.println(name + ": " + value);
task.RemoveProgressInfo(0);
}
// Sleep 100 ms.
task.SleepMs(100);
}
// Just in case there are any remaining entries...while ((task.get_ProgressLogSize() > 0)) {
// Get the 1st entry, emit it, and then remove it..
name = task.progressInfoName(0);
value = task.progressInfoValue(0);
System.out.println(name + ": " + value);
task.RemoveProgressInfo(0);
}
// A finished task could be one that was canceled, aborted, or truly finished.// If the task was "canceled", it was canceled prior to actually starting. This could// happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's// background thread pool scheduler.// If the task was "aborted", it indicates that it was canceled while running in a background thread.// The ResultErrorText will likely indicate that the task was aborted.// If the task "completed", then it ran to completion, but the actual success/failure of the method// is determined by the result obtained via a GetResult* method. (A "completed" task will// have a StatusInt equal to 7. If the task finished, but was not completed, then it must've// been aborted or canceled:if (task.get_StatusInt() != 7) {
System.out.println("Task did not complete.");
System.out.println("task status: " + task.status());
return;
}
// The GetFile method returns a boolean. Therefore, after the task is finished,// we can get the boolean result by calling GetResultBool. This is the return value had// we called DownloadFileByName synchronously.
success = task.GetResultBool();
if (success != true) {
// The task's ResultErrorText contains what would have been in the LastErrorText property had// the GetFile method been called synchronously.
System.out.println(task.resultErrorText());
}
else {
System.out.println("File downloaded asynchronously.");
}
success = ftp.Disconnect();
}
}